ZA200801159B - A relay-to-relay direct communication system and method in a electric power system - Google Patents

A relay-to-relay direct communication system and method in a electric power system

Info

Publication number
ZA200801159B
ZA200801159B ZA200801159A ZA200801159A ZA200801159B ZA 200801159 B ZA200801159 B ZA 200801159B ZA 200801159 A ZA200801159 A ZA 200801159A ZA 200801159 A ZA200801159 A ZA 200801159A ZA 200801159 B ZA200801159 B ZA 200801159B
Authority
ZA
South Africa
Prior art keywords
relay
electric power
direct communication
communication system
power system
Prior art date
Application number
ZA200801159A
Inventor
Tony J Lee
Dolezilek David
Original Assignee
Schweitzer Engineering Lab Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Publication of ZA200801159B publication Critical patent/ZA200801159B/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations
ZA200801159A 2005-08-25 2006-08-25 A relay-to-relay direct communication system and method in a electric power system ZA200801159B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/211,816 US7463467B2 (en) 2001-07-06 2005-08-25 Relay-to-relay direct communication system and method in an electric power system

Publications (1)

Publication Number Publication Date
ZA200801159B true ZA200801159B (en) 2009-08-26

Family

ID=37772507

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200801159A ZA200801159B (en) 2005-08-25 2006-08-25 A relay-to-relay direct communication system and method in a electric power system

Country Status (7)

Country Link
US (1) US7463467B2 (en)
CN (1) CN101536281A (en)
BR (1) BRPI0614933A2 (en)
CA (1) CA2616319C (en)
MX (1) MX2008002628A (en)
WO (1) WO2007025257A2 (en)
ZA (1) ZA200801159B (en)

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US9256232B2 (en) 2009-06-12 2016-02-09 Schweitzer Engineering Laboratories, Inc. Voltage regulation using multiple voltage regulator controllers
US8275486B2 (en) * 2009-08-10 2012-09-25 Schweitzer Engineering Laboratories, Inc. Electric power system automation using time coordinated instructions
US8351433B2 (en) * 2009-09-18 2013-01-08 Schweitzer Engineering Laboratories Inc Intelligent electronic device with segregated real-time ethernet
US8867345B2 (en) * 2009-09-18 2014-10-21 Schweitzer Engineering Laboratories, Inc. Intelligent electronic device with segregated real-time ethernet
US8476874B2 (en) 2009-10-13 2013-07-02 Schweitzer Engineering Laboratories, Inc Systems and methods for synchronized control of electrical power system voltage profiles
EP2605353B1 (en) * 2009-12-16 2018-06-27 Siemens Aktiengesellschaft Protection for parallel lines in an electrical energy supply network
CN104037741B (en) * 2009-12-16 2017-10-24 西门子公司 The protection of the parallel wire of electrical energy supply system
CN104065049B (en) * 2009-12-16 2017-06-09 西门子公司 The protection of the parallel wire of electrical energy supply system
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US8812256B2 (en) 2011-01-12 2014-08-19 Schweitzer Engineering Laboratories, Inc. System and apparatus for measuring the accuracy of a backup time source
CN102110978A (en) * 2011-01-20 2011-06-29 单立辉 Method and device for high-accuracy low-current intelligent grounding wire selection
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US9383735B2 (en) 2012-10-04 2016-07-05 Schweitzer Engineering Laboratories, Inc. Distributed coordinated electric power delivery control system using component models
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US9300591B2 (en) 2013-01-28 2016-03-29 Schweitzer Engineering Laboratories, Inc. Network device
US9270109B2 (en) 2013-03-15 2016-02-23 Schweitzer Engineering Laboratories, Inc. Exchange of messages between devices in an electrical power system
US9065763B2 (en) 2013-03-15 2015-06-23 Schweitzer Engineering Laboratories, Inc. Transmission of data over a low-bandwidth communication channel
US9620955B2 (en) 2013-03-15 2017-04-11 Schweitzer Engineering Laboratories, Inc. Systems and methods for communicating data state change information between devices in an electrical power system
US9128140B2 (en) 2013-09-16 2015-09-08 Schweitzer Engineering Laboratories, Inc. Detection of a fault in an ungrounded electric power distribution system
US9568516B2 (en) 2014-09-23 2017-02-14 Schweitzer Engineering Laboratories, Inc. Determining status of electric power transmission lines in an electric power transmission system
JP6523058B2 (en) * 2015-06-05 2019-05-29 株式会社東芝 Communication system and estimation method
US9967135B2 (en) 2016-03-29 2018-05-08 Schweitzer Engineering Laboratories, Inc. Communication link monitoring and failover
CN106451374A (en) * 2016-06-30 2017-02-22 国网山东省电力公司日照供电公司 Power distribution network bidirectional allow type protection method based on FTU role identification
CN106451373A (en) * 2016-06-30 2017-02-22 国网山东省电力公司日照供电公司 Bidirectional allowable protection method employing master station to identify dynamic topology for power distribution circuit
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US10819727B2 (en) 2018-10-15 2020-10-27 Schweitzer Engineering Laboratories, Inc. Detecting and deterring network attacks
US10992134B2 (en) 2019-05-10 2021-04-27 Schweitzer Engineering Laboratories, Inc. Load shedding system for both active and reactive power based on system perturbation
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Also Published As

Publication number Publication date
WO2007025257A3 (en) 2009-04-16
CA2616319A1 (en) 2007-03-01
WO2007025257A2 (en) 2007-03-01
CA2616319C (en) 2012-06-12
US7463467B2 (en) 2008-12-09
US20050280965A1 (en) 2005-12-22
MX2008002628A (en) 2008-03-14
BRPI0614933A2 (en) 2012-12-25
CN101536281A (en) 2009-09-16

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